Globe-holder attachment for gas-fixtures.



No. 696,644. Patented Apr. 1, 1902..

' J. KlRBY, In.

I GLOBE HOLDER ATTACHMENT FOR GAS FIXTURES.

(Application filed Jan. 15, 1902,)

(No Model.)

Invantnr.

THE Nonms PETERS co PNo'ruumO., WASHVNGTON. n. c.

UNITED grantee i Fa'rnnr @nrrcn.

JOIIN KIRBY, JR, OF DAYTON, OHIO, ASSIGNOR TO THE DAYTON MANU- FACTURING- COMPANY, OF DAYTON, OHIO. I

GLOBE-HOLDER ATTACHMENT FOR GAS-FIXTURES.

SPECIFICATION forming part of Letters Patent No. 696,644, dated April 1, 1902.

Application filed January 15, 1902. serial No. 89,798- (No model.)

To aZZ whom. it natty concern:

Be it known that I, JOHN KIRB Y, Jr. a citizen of the United States, residing in the city of Dayton, in the county of Montgomery and State of Ohio, have invented certain new and useful Improvements in Globe-Holder Attachments for Gas-Fixtures; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

My invention is more particularly applicable to gas-fixtures for use in railway-cars; and its object is to combine with such fixtures a holder for the bottom of the globe thereof which will be efficient and durable and which Will hold the globe rigid under the jolting and vibrations incident to a moving car or train of cars and at the same time provide for suflicient elasticity to avoid breakage thereof under such conditions; and it contemplates the performance of said function Without the employment of any device at the top of the globe to assist inholding the same in position and preventing rattling.

The invention consists in certain new and novel combinations of elements, such as are hereinafter fully described and claimed.

In the drawings, Figure 1 represents a portion of the arm of a gas-fixture having my improvement applied thereto, part being shown in elevation and part in section, the sectional line being drawn through the center of the globe-holder and gascock. Fig. 2 represents a side elevation of a wall-fixture with my improvement attached, a portion of same being broken away to show one manner in which the globe-holder may be secured to the bracket. Fig. 3 represents an enlarged perspective broken View of the inner ring of the globeholder, detached, with provision for supporting the holder at the center thereof. Fig. 4 represents a similar view to Fig. 3, but with provision for supporting the holder upon branch arms extending from the gasarm. Fig. 5 represents an enlarged perspective view of the outer ring of the holder, detached, and the spring-holder expanded within the same; and Fig. 6 represents an enlarged sectional view of a portion of the globe and holder, the parts being shown in their relative positions when the globe is free to be rcmoved.

Similar letters of reference indicate corrc' sponding parts in all the figures of the drawings.

Referring to Fig. 1, A represents part of a gas-arm,which may lead from a suspended fixture or form a part of a wall fixture oi' bracket- It is provided with a gasway (l, and its free end is hushed with a hollow tapered barrel 1), which forms a casing for a gas-plug c, having a central bore e and a lateral perforation f. To the upper end of the barrel 1) there is secured, preferably by screw threads, as shown, an extension 13, having a central recess or chamber g to receive the upper end of the gas-plug c, and projecting from and above this extension is an exteriorly'screwthreaded nipple 71., through which there is a gas-passage i.

D represents an inner ring provided with an exterior screw-thread j and whose inner wall is of greater diameter at the top than at the bottom thereof, thus forming a circumferential incline 70. A suitable number of arms Zextend from the inner edge of the ring D to a hub m at the center thereof, the same being perforated at n and screw-threaded to engage the screw-threads of the nipple 71, upon which it is screwed down onto a shoulder 0, formed at the upper end of the extension 13, where it is held in place between the said shoulder and a burner E, which is also screwed onto the nipple, as shown.

F is an outer ring provided with an inwardly-turned flange p and a circumferential recess or chamber q, within and around which is arranged a spiral spring G, with the said flange p bearing against the top side thereof. This ring is provided at its lower edge with a screw-thread 7', which registers with. the screwthread j of the ring D, and as it is screwed down thereon the upper side of theinclinelc will engage the spring G back of the center line thereof and cause it to ride down the incline, thereby decreasing the diameter sufli cient to bear against the lip s of the globe II and hold the globe rigid, as shown in Fig. 1, the released position of the globe being shown in Fig. 6, in which figure the rings D and F are almost disengaged and the spring G is expanded back into the recess q, so that the globe is free to be inserted into or removed from the holder.

In Fig. 4: it will be observed that in lieu of the arms Z (shown in Figs. 1 and 3) there is provided lugs t, by which the ring D may be secured to branches u of a bracket I by means of screws 1), as shown in Fig. 2.

Having thus fully described my invention, I claim 1. The combination with a gas arm or bracket, of a globe-holder consisting of an exteriorly-screw-threaded inner ring the inner wall of which is of greater diameter at thetop than at the bottom thereof thus forming a circumferential incline, a circular-formed spiral spring resting on said incline, an outer ring having an inwardly-turned flange which engages the top side of the said spring and an interior screw-thread which engages the 9X- terior screw-thread of the said inner ring whereby elevating and lowering the said outer ring will increase the diameter of said spring to correspond with its position on the said incline, and means for supporting the said holder at the free end of said gas arm or bracket, substantially as and for the purpose set forth.

2. A gas arm or bracket, in combination with a globe and holder therefor supported at the free end of said arm or bracket and consisting of an exteriorly-screw-threaded inner ring the inner Wall of which is of greater diameter at the top than at the bottom thereof thus forming a circumferential incline, a circular-formed spiral spring resting on said incline,an outer ring having an inwardly-turned flange which engages the top side of the said spring and an interior screw-thread which engages the exterior screw-thread of the said inner ring whereby elevating and lowering the said outer ring will increase and decrease the diameter of said spring to correspond with its position on the said incline and whereby the said lowering operation will hold the globe rigidly within the holder, substantially as and for the purpose set forth.

In testimony whereof I hereunto subscribe my name this 0th day of January, 1902.

JOHN KIRBY, JR. \Vitnesses:

O. U. RAYMOND, ED. L. SPENCER. 

